Yadav was recently granted seven-day custody parole by the high court to visit his 93-year-old ailing grandfather and to challenge the high court order in the Supreme Court.

He has again approached the high court, saying he needs extension of parole as the documents in the case are bulky and more time was needed to prepare his appeal.

The high court on February 6 had enhanced to 30-year jail term without remission the life sentence awarded to Vikas Yadav and his cousin Vishal Yadav for Katara's murder, a friend of Vikas Yadav's sister.

Vikas Yadav, son of politician D.P. Yadav, had earlier pleaded before the court that his conduct has been good throughout his 13 years in jail.